Invisible Mobile Radio Installation
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Invisible Mobile Radio Installation
I am an Amateur Radio operator (Ham). Living in the Yukon where cell coverage is only available in 11 communities and within 5 minutes of driving outside of any of them it no longer works, having an alternative communication system is very important.
When I purchased my G37 I wanted to install a radio system in the car, but I didn't want to 'mess' with the style or lines of the car - you can imagine the look a 6' whip would add! Through some research I came across an interesting antenna design by US Communications. They custom make invisible bumper and license plate antennas for various applications - including the dual band (2m/70cm) version that I ordered from them (http://www.licenseplateantenna.com/). On hand already was an Icom IC-208H dual band radio whose key feature for this application is an exceptionally small remote face plate.
The antenna when ordered can be specified for a front and rear license plate attachment, front or rear only, or just wires in the bumper (no attachment to the license plate). In my case, it was configured with a rear license plate attachment (there are no front plates in the Yukon) and a wire only for the front. The wires for the front as well as the ground plane wire for the rear is installed on top of the energy absorbing material (usually some form of Styrofoam) and underneath the skin on the bumper.
Through reading several threads on this site, and having downloaded the service manual, I was ready to dive in. The install was done in three steps - the front bumper antenna install, the rear license plate antenna install, the interior radio install. A seperate post for each step follows...
Here's a picture of the car.
When I purchased my G37 I wanted to install a radio system in the car, but I didn't want to 'mess' with the style or lines of the car - you can imagine the look a 6' whip would add! Through some research I came across an interesting antenna design by US Communications. They custom make invisible bumper and license plate antennas for various applications - including the dual band (2m/70cm) version that I ordered from them (http://www.licenseplateantenna.com/). On hand already was an Icom IC-208H dual band radio whose key feature for this application is an exceptionally small remote face plate.
The antenna when ordered can be specified for a front and rear license plate attachment, front or rear only, or just wires in the bumper (no attachment to the license plate). In my case, it was configured with a rear license plate attachment (there are no front plates in the Yukon) and a wire only for the front. The wires for the front as well as the ground plane wire for the rear is installed on top of the energy absorbing material (usually some form of Styrofoam) and underneath the skin on the bumper.
Through reading several threads on this site, and having downloaded the service manual, I was ready to dive in. The install was done in three steps - the front bumper antenna install, the rear license plate antenna install, the interior radio install. A seperate post for each step follows...
Here's a picture of the car.
Last edited by ukoner; 04-21-2008 at 11:32 AM.
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Front Bumper Antenna Installation
Picture 01 - the front of the car with the bumper skin removed
Picture 02 - the antenna installed
Picture 01 - the front of the car with the bumper skin removed
Picture 02 - the antenna installed
Last edited by ukoner; 04-21-2008 at 11:32 AM.
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Rear Bumper License Plate Antenna Installation
Picture 03 - the rear bumper skin removed - have to take the tail lights off to access all the clips.
Picture 04 - I ran the antenna wire through the grommet into the trunk - from there around the side of the trunk, behind the armrest/side panel in the back seat, then along under the sill trim to the radio location.
Picture 05 - Ground plane for the antenna - I had to dremmel a notch for the line so that the bumper skin would sit correctly.
Picture 06 - Antenna lead attached to the license plate.
Picture 03 - the rear bumper skin removed - have to take the tail lights off to access all the clips.
Picture 04 - I ran the antenna wire through the grommet into the trunk - from there around the side of the trunk, behind the armrest/side panel in the back seat, then along under the sill trim to the radio location.
Picture 05 - Ground plane for the antenna - I had to dremmel a notch for the line so that the bumper skin would sit correctly.
Picture 06 - Antenna lead attached to the license plate.
Last edited by ukoner; 04-21-2008 at 11:32 AM.
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Interior and Radio Installation
Picture 07 - I removed the ash tray and cut out the lighter plug in there to make room for the remote face of the radio inside.
Picture 08 - Connector for the microphone was mounted in the arm rest.
Picture 09 - Radio is mounted on it's edge behind the glove box.
Picture 10 - Overview of the radio mount and wiring.
Picture 07 - I removed the ash tray and cut out the lighter plug in there to make room for the remote face of the radio inside.
Picture 08 - Connector for the microphone was mounted in the arm rest.
Picture 09 - Radio is mounted on it's edge behind the glove box.
Picture 10 - Overview of the radio mount and wiring.
Last edited by ukoner; 04-21-2008 at 11:32 AM.
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Finished Product
Picture 11 - The door on the ash tray still operates like before - completely hiding the radio control face.
Picture 12 - Everything back together.
Further time and experimentation is required to understand the performance of the antenna. So far, I have had no problem working the repeaters in our area – ones that I would not be able to work using the handheld inside or outside of the car. For any Ham's out there - SWR on the antenna is better than 3:1 on all the frequencies that I use – it’s 1.5:1 on the main repeater input for Whitehorse that I use the most (146.88-).
For the next project, I will look at installing a Bluetooth microphone interface to connect to the integrated Bluetooth system in the car. Then the system will be both hands and sight free!
Picture 11 - The door on the ash tray still operates like before - completely hiding the radio control face.
Picture 12 - Everything back together.
Further time and experimentation is required to understand the performance of the antenna. So far, I have had no problem working the repeaters in our area – ones that I would not be able to work using the handheld inside or outside of the car. For any Ham's out there - SWR on the antenna is better than 3:1 on all the frequencies that I use – it’s 1.5:1 on the main repeater input for Whitehorse that I use the most (146.88-).
For the next project, I will look at installing a Bluetooth microphone interface to connect to the integrated Bluetooth system in the car. Then the system will be both hands and sight free!
Last edited by ukoner; 04-21-2008 at 11:32 AM.
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#8
Finished Product
Picture 11 - The door on the ash tray still operates like before - completely hiding the radio control face.
Picture 12 - Everything back together.
Further time and experimentation is required to understand the performance of the antenna. So far, I have had no problem working the repeaters in our area – ones that I would not be able to work using the handheld inside or outside of the car. For any Ham's out there - SWR on the antenna is better than 3:1 on all the frequencies that I use – it’s 1.5:1 on the main repeater input for Whitehorse that I use the most (146.88-).
For the next project, I will look at installing a Bluetooth microphone interface to connect to the integrated Bluetooth system in the car. Then the system will be both hands and sight free!
Picture 11 - The door on the ash tray still operates like before - completely hiding the radio control face.
Picture 12 - Everything back together.
Further time and experimentation is required to understand the performance of the antenna. So far, I have had no problem working the repeaters in our area – ones that I would not be able to work using the handheld inside or outside of the car. For any Ham's out there - SWR on the antenna is better than 3:1 on all the frequencies that I use – it’s 1.5:1 on the main repeater input for Whitehorse that I use the most (146.88-).
For the next project, I will look at installing a Bluetooth microphone interface to connect to the integrated Bluetooth system in the car. Then the system will be both hands and sight free!
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#13
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I have been a 'ham' for many years. My wife also recently got her license (it's her call sign that's on the plates - my call is on our truck) so having the radio in the car is quite handy for day to day quick communications (like "I'm just arriving outside your office to pick you up...")
There is no local Infiniti dealer, but the Nissan dealer can look after any warranty issues (there are a handfull of Infiniti's around - a few G35's, and a FX that I have seen).
Not everyone would appreciate living up here, but I love it. There is something special about having more area than California but with only about 30,000 people total.
#14
Both DSL and cable available in Whitehorse for net connection - though they both end up on the same pipe out of the territory. Satellite phone is good for emergencies, but you would have to stop and get out to use it. The satellite radio service is spotty because any geostationary satellites are quite low on the horizon.
I have been a 'ham' for many years. My wife also recently got her license (it's her call sign that's on the plates - my call is on our truck) so having the radio in the car is quite handy for day to day quick communications (like "I'm just arriving outside your office to pick you up...")
There is no local Infiniti dealer, but the Nissan dealer can look after any warranty issues (there are a handfull of Infiniti's around - a few G35's, and a FX that I have seen).
Not everyone would appreciate living up here, but I love it. There is something special about having more area than California but with only about 30,000 people total.
I have been a 'ham' for many years. My wife also recently got her license (it's her call sign that's on the plates - my call is on our truck) so having the radio in the car is quite handy for day to day quick communications (like "I'm just arriving outside your office to pick you up...")
There is no local Infiniti dealer, but the Nissan dealer can look after any warranty issues (there are a handfull of Infiniti's around - a few G35's, and a FX that I have seen).
Not everyone would appreciate living up here, but I love it. There is something special about having more area than California but with only about 30,000 people total.